Aggregation "items" does not exist in Element sap.m.StandardListItem#subcatId

Question

Im trying to bind products of certain categories, in each category there is an expand of products, first of all i list the categories from default oData service read-write only http://services.odata.org/V3/OData/OData.svc, then by clicking the one of category im taking its path( it returns like: Category(1) or Category(2) and etc ), and use it to call the products of this category, but there is a mistake, Aggregation "items" does not exist in Element sap.m.StandardListItem#subcatId what im doing wrong?

here is the code that take the sPath of category then trying to retrieve the list of products of this category:

    var app = sap.ui.getCore().byId("appId");
    var list = sap.ui.getCore().byId("listId");

    var sItem = list.getSelectedItem();
    var sPath = sItem.oBindingContexts.data.sPath;

    var sCont = sap.ui.getCore().byId("subcatId");
    var sCats = new sap.m.StandardListItem({
        parameters: {expand: "Products"},
        title: "{data>Name}"
    })

    sCont.bindAggregation("items","data>"+sPath,sCats);

the api's:

http://services.odata.org/V3/OData/OData.svc/Categories http://services.odata.org/V3/OData/OData.svc/Products http://services.odata.org/V3/OData/OData.svc/Categories?$expand=Products

thank you all for help!

Answer 1

It seems that sCont is an instance of sap.m.StandardListItem. The StandardListItem does not have an aggregation "items" as you can see from the API docs. Instead of calling

sCont.bindAggregation("items","data>"+sPath,sCats);

you should try to bind the items aggregation of the corresponding list like this:

list.bindAggregation("items",...);

I can see in your code snippet that you even retrieved the list in the second line:

var list = sap.ui.getCore().byId("listId");